Patent · US Expired

Method and device for producing a three-dimensional object

US6932935B1 · kind B1 · utility

128Cited by

12References

41Claims

0Family size

Assignee

EOS GmbH Electro Optical Systems · DE

Inventors

Johann Oberhofer · Unterschleißheim, DE
Jochen Weidinger · Birkenfeld, DE
Thomas Mattes · Germering, DE

Key dates

Filing date	Jul 28, 2000
Grant date	Aug 23, 2005
Priority date	—
Expiry date	Jul 27, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/25
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A process is provided for producing a three-dimensional object having the steps forming the object (3) in a container (1, 200) arranged within a process chamber (100) on a carrier (4) which can be displaced in the container by sequential selective solidification of layers of a pulverulent material (11) which can be solidified by the action of electromagnetic or particle radiation at positions corresponding to the cross-section of the object in the particular layer, characterised by the step of controlled removal of non-solidified pulverulent material (11) after completing the object (3).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.